EventHttp::setCallback
EventHttp::setCallback
(PECL event >= 1.4.0-beta)
EventHttp :: setCallback - 为指定的 URI 设置回调
描述
public void EventHttp::setCallback ( string $path , string $cb [, string $arg ] )
为指定的 URI 设置回调。
参数
path
调用回调的路径。
cb
根据请求调用的回调可调用path
。它应该匹配以下原型:
void callback ([ EventHttpRequest $req = NULL [, mixed $arg = NULL ]] )
req
EventHttpRequest 对象。
arg
自定义数据。
`arg`
自定义数据。
返回值
TRUE
成功返回。否则FALSE
。
例子
示例#1 EventHttp :: setCallback()示例
<?php
/*
* Simple HTTP server.
*
* To test it:
* 1) Run it on a port of your choice, e.g.:
* $ php examples/http.php 8010
* 2) In another terminal connect to some address on this port
* and make GET or POST request(others are turned off here), e.g.:
* $ nc -t 127.0.0.1 8010
* POST /about HTTP/1.0
* Content-Type: text/plain
* Content-Length: 4
* Connection: close
* (press Enter)
*
* It will output
* a=12
* HTTP/1.0 200 OK
* Content-Type: text/html; charset=ISO-8859-1
* Connection: close
*
* 3) See what the server outputs on the previous terminal window.
*/
function _http_dump($req, $data) {
static $counter = 0;
static $max_requests = 2;
if (++$counter >= $max_requests) {
echo "Counter reached max requests $max_requests. Exiting\n";
exit(
}
echo __METHOD__, " called\n";
echo "request:"; var_dump($req
echo "data:"; var_dump($data
echo "\n===== DUMP =====\n";
echo "Command:", $req->getCommand(), PHP_EOL;
echo "URI:", $req->getUri(), PHP_EOL;
echo "Input headers:"; var_dump($req->getInputHeaders()
echo "Output headers:"; var_dump($req->getOutputHeaders()
echo "\n >> Sending reply ...";
$req->sendReply(200, "OK"
echo "OK\n";
echo "\n >> Reading input buffer ...\n";
$buf = $req->getInputBuffer(
while ($s = $buf->readLine(EventBuffer::EOL_ANY)) {
echo $s, PHP_EOL;
}
echo "No more data in the buffer\n";
}
function _http_about($req) {
echo __METHOD__, PHP_EOL;
echo "URI: ", $req->getUri(), PHP_EOL;
echo "\n >> Sending reply ...";
$req->sendReply(200, "OK"
echo "OK\n";
}
function _http_default($req, $data) {
echo __METHOD__, PHP_EOL;
echo "URI: ", $req->getUri(), PHP_EOL;
echo "\n >> Sending reply ...";
$req->sendReply(200, "OK"
echo "OK\n";
}
$port = 8010;
if ($argc > 1) {
$port = (int) $argv[1];
}
if ($port <= 0 || $port > 65535) {
exit("Invalid port"
}
$base = new EventBase(
$http = new EventHttp($base
$http->setAllowedMethods(EventHttpRequest::CMD_GET | EventHttpRequest::CMD_POST
$http->setCallback("/dump", "_http_dump", array(4, 8)
$http->setCallback("/about", "_http_about"
$http->setDefaultCallback("_http_default", "custom data value"
$http->bind("0.0.0.0", 8010
$base->loop(
?>
上面的例子会输出类似于:
a=12
HTTP/1.0 200 OK
Content-Type: text/html; charset=ISO-8859-1
Connection: close
也可以看看
- EventHttp :: setDefaultCallback() - 设置默认回调来处理未被特定回调捕获的请求
← EventHttp::setAllowedMethods
EventHttp::setDefaultCallback →